[Dion]

The point of the documentary, Cisna said, is that "It's our choices that make us fat - not McDonald's."

Cisna ate nothing but McDonald's food for 90 days this fall while he and his team of three students at Colo-Nesco High School, 32 miles northeast of Des Moines, filmed a documentary of the experiment, KCCI.com reported.

What they found, Cisna said, was that he could eat any food he wanted from McDonald's as long as he ate smart the rest of the day, kept his daily intake to 2,000 calories, and tried to stick to recommended allowances of carbohydrates, proteins, fats and cholesterol.

The students used the company's online nutritional information to guide the teacher's diet, which typically might include a couple of Egg White Delight McMuffins, maple oatmeal and 1 percent milk for breakfast, a salad for lunch and value meal for dinner.

The diet program included Big Macs, Quarter Pounders and sundaes, Cisna said. He also started walking 45 minutes a day.

Not only did Cisna knock inches off his waistline -- "not only can I see my shoes now, but I can actually tie them," he quipped to KCCI -- he also cut his cholesterol from 249 to 170. He wasn't surprised by the weight loss because he wasn't exercising before the experiment, but he was surprised by the drop in his cholesterol level, he said.

http://www.syracuse.com/news/index.s...37_pounds.html